package com.commerce.product.controller;

import com.commerce.common.utils.Result;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.*;

/**
 * 秒杀管理员控制器
 */
@Slf4j
@RestController
@RequestMapping("/api/flash-sale/admin")
@CrossOrigin(originPatterns = "*", allowCredentials = "true")
public class FlashSaleAdminController {

    /**
     * 获取秒杀活动列表
     */
    @GetMapping("/list")
    public Result<Map<String, Object>> getFlashSaleList(
            @RequestParam(defaultValue = "1") Integer page,
            @RequestParam(defaultValue = "10") Integer pageSize) {
        log.info("获取秒杀活动列表，页码：{}，每页数量：{}", page, pageSize);
        
        Map<String, Object> result = new HashMap<>();
        List<Map<String, Object>> records = new ArrayList<>();
        
        // 模拟秒杀活动数据
        for (int i = 1; i <= 5; i++) {
            Map<String, Object> activity = new HashMap<>();
            activity.put("id", i);
            activity.put("name", "双11特惠秒杀活动" + i);
            activity.put("description", "限时抢购，数量有限");
            activity.put("startTime", LocalDateTime.now().plusHours(i));
            activity.put("endTime", LocalDateTime.now().plusHours(i + 2));
            activity.put("status", i <= 2 ? 1 : 0); // 1-进行中，0-未开始
            activity.put("productCount", 10 + i * 2);
            activity.put("totalSales", 1000 + i * 500);
            activity.put("createTime", LocalDateTime.now().minusDays(i));
            activity.put("updateTime", LocalDateTime.now());
            records.add(activity);
        }
        
        result.put("records", records);
        result.put("total", 25);
        result.put("size", pageSize);
        result.put("current", page);
        result.put("pages", 3);
        
        return Result.success(result);
    }

    /**
     * 获取统计数据
     */
    @GetMapping("/statistics")
    public Result<Map<String, Object>> getStatistics() {
        log.info("获取管理员统计数据");
        
        Map<String, Object> stats = new HashMap<>();
        
        // 今日数据
        Map<String, Object> today = new HashMap<>();
        today.put("sales", 15680);
        today.put("orders", 1250);
        today.put("users", 890);
        today.put("revenue", 256800.50);
        stats.put("today", today);
        
        // 本月数据
        Map<String, Object> month = new HashMap<>();
        month.put("sales", 456780);
        month.put("orders", 35600);
        month.put("users", 12500);
        month.put("revenue", 7890000.00);
        stats.put("month", month);
        
        // 趋势数据
        List<Map<String, Object>> trends = new ArrayList<>();
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MM-dd");
        LocalDateTime now = LocalDateTime.now();
        
        for (int i = 6; i >= 0; i--) {
            Map<String, Object> trend = new HashMap<>();
            trend.put("date", now.minusDays(i).format(formatter));
            trend.put("sales", 2000 + (int)(Math.random() * 1000));
            trend.put("orders", 150 + (int)(Math.random() * 100));
            trend.put("revenue", 35000 + (int)(Math.random() * 15000));
            trends.add(trend);
        }
        stats.put("trends", trends);
        
        // 热门商品
        List<Map<String, Object>> hotProducts = new ArrayList<>();
        String[] productNames = {"iPhone 15 Pro", "MacBook Air M2", "AirPods Pro", "iPad Air", "Apple Watch"};
        for (int i = 0; i < 5; i++) {
            Map<String, Object> product = new HashMap<>();
            product.put("id", i + 1);
            product.put("name", productNames[i]);
            product.put("sales", 500 - i * 50);
            product.put("revenue", (500 - i * 50) * (5000 + i * 1000));
            hotProducts.add(product);
        }
        stats.put("hotProducts", hotProducts);
        
        return Result.success(stats);
    }

    /**
     * 创建秒杀活动
     */
    @PostMapping("/create")
    public Result<String> createFlashSale(@RequestBody Map<String, Object> flashSale) {
        log.info("创建秒杀活动：{}", flashSale);
        
        // 这里应该保存到数据库
        // flashSaleService.create(flashSale);
        
        return Result.success("秒杀活动创建成功");
    }

    /**
     * 更新秒杀活动
     */
    @PutMapping("/update/{id}")
    public Result<String> updateFlashSale(@PathVariable Long id, @RequestBody Map<String, Object> flashSale) {
        log.info("更新秒杀活动，ID：{}，数据：{}", id, flashSale);
        
        // 这里应该更新数据库
        // flashSaleService.updateById(id, flashSale);
        
        return Result.success("秒杀活动更新成功");
    }

    /**
     * 删除秒杀活动
     */
    @DeleteMapping("/delete/{id}")
    public Result<String> deleteFlashSale(@PathVariable Long id) {
        log.info("删除秒杀活动，ID：{}", id);
        
        // 这里应该从数据库删除
        // flashSaleService.deleteById(id);
        
        return Result.success("秒杀活动删除成功");
    }

    /**
     * 获取秒杀活动详情
     */
    @GetMapping("/detail/{id}")
    public Result<Map<String, Object>> getFlashSaleDetail(@PathVariable Long id) {
        log.info("获取秒杀活动详情，ID：{}", id);
        
        Map<String, Object> detail = new HashMap<>();
        detail.put("id", id);
        detail.put("name", "双11特惠秒杀活动" + id);
        detail.put("description", "限时抢购，数量有限，先到先得");
        detail.put("startTime", LocalDateTime.now().plusHours(1));
        detail.put("endTime", LocalDateTime.now().plusHours(3));
        detail.put("status", 1);
        detail.put("productCount", 15);
        detail.put("totalSales", 2500);
        detail.put("createTime", LocalDateTime.now().minusDays(1));
        detail.put("updateTime", LocalDateTime.now());
        
        // 关联商品列表
        List<Map<String, Object>> products = new ArrayList<>();
        for (int i = 1; i <= 3; i++) {
            Map<String, Object> product = new HashMap<>();
            product.put("id", i);
            product.put("productId", 30 + i);
            product.put("productName", "商品" + i);
            product.put("originalPrice", 1000 + i * 500);
            product.put("flashPrice", 800 + i * 400);
            product.put("stock", 100 - i * 10);
            product.put("soldCount", i * 20);
            product.put("limitPerUser", 2);
            products.add(product);
        }
        detail.put("products", products);
        
        return Result.success(detail);
    }

    /**
     * 启动秒杀活动
     */
    @PostMapping("/start/{id}")
    public Result<String> startFlashSale(@PathVariable Long id) {
        log.info("启动秒杀活动，ID：{}", id);
        
        // 这里应该更新活动状态
        // flashSaleService.start(id);
        
        return Result.success("秒杀活动启动成功");
    }

    /**
     * 停止秒杀活动
     */
    @PostMapping("/stop/{id}")
    public Result<String> stopFlashSale(@PathVariable Long id) {
        log.info("停止秒杀活动，ID：{}", id);
        
        // 这里应该更新活动状态
        // flashSaleService.stop(id);
        
        return Result.success("秒杀活动停止成功");
    }

    /**
     * 获取活动商品列表
     */
    @GetMapping("/{id}/products")
    public Result<List<Map<String, Object>>> getFlashSaleProducts(@PathVariable Long id) {
        log.info("获取秒杀活动商品列表，活动ID：{}", id);
        
        List<Map<String, Object>> products = new ArrayList<>();
        for (int i = 1; i <= 5; i++) {
            Map<String, Object> product = new HashMap<>();
            product.put("id", i);
            product.put("productId", 30 + i);
            product.put("productName", "秒杀商品" + i);
            product.put("mainImage", "https://example.com/image" + i + ".jpg");
            product.put("originalPrice", 1000 + i * 500);
            product.put("flashPrice", 800 + i * 400);
            product.put("discountPercent", 20);
            product.put("stock", 100 - i * 10);
            product.put("soldCount", i * 25);
            product.put("limitPerUser", 2);
            product.put("status", 1);
            products.add(product);
        }
        
        return Result.success(products);
    }

    /**
     * 添加商品到秒杀活动
     */
    @PostMapping("/{id}/products")
    public Result<String> addProductToFlashSale(@PathVariable Long id, @RequestBody Map<String, Object> product) {
        log.info("添加商品到秒杀活动，活动ID：{}，商品：{}", id, product);
        
        // 这里应该保存到数据库
        // flashSaleProductService.add(id, product);
        
        return Result.success("商品添加成功");
    }

    /**
     * 从秒杀活动中移除商品
     */
    @DeleteMapping("/{id}/products/{productId}")
    public Result<String> removeProductFromFlashSale(@PathVariable Long id, @PathVariable Long productId) {
        log.info("从秒杀活动中移除商品，活动ID：{}，商品ID：{}", id, productId);
        
        // 这里应该从数据库删除
        // flashSaleProductService.remove(id, productId);
        
        return Result.success("商品移除成功");
    }
}
